Fastest swim long course 50 metres breaststroke (male)

- Who
- Adam Peaty
- What
- 25.95 second(s)
- Where
- Hungary (Budapest)
- When
- 25 August 2017
At the 2017 FINA World Swimming Championships, Adam Peaty (UK) won the semi-final of the 50 m breaststroke in 25.95 seconds at the Danube Arena in Hungary, Budapest, on 25 July 2017. It was the first time any swimmer had broken the 26-second barrier in this event. Peaty broke his own record twice in the same day, having recorded a time of 26.10 seconds in an earlier heat.